यदि \(a_n=3n^2+5n\) है, तो \(a_6\) क्या होगा?
If \(a_n=3n^2+5n\), what is \(a_6\)?
Explanation opens after your attempt
B. (138)
Concept
(a_6=3(6)2+5(6)=138). Calculate the square first and then add the remaining term.
Why this answer is correct
The correct answer is B. (138). (a_6=3(6)2+5(6)=138). Calculate the square first and then add the remaining term.
Exam Tip
(a_6=3(6)2+5(6)=138)। वर्ग की गणना पहले करें फिर बाकी पद जोड़ें।
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